Using the Lady Bug, got to the room with the egg under the raising block and opened the passage with more cracks. Opened the room right, but after that the Bug doesn't want to go anywhere, not in the main passage too. What am I missing here?

Left back corner and remember you can grab the gold, even when it is on the ceiling :D If I have the right place in mind, you have to get into an opening in the left ceiling in the picture. Stand on the gold, against the wall and stand jump to grab the gold on the ceiling, go forward to a column, tu...